package com.first;

import java.util.Scanner;

public class 键盘录入 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        System.out.println("请输入你的数字");

        int i = sc.nextInt();

        System.out.println("你输入的数字是:"+i);
    }
}
